2131000022312 has 64 divisors (see below), whose sum is σ = 4624348579200. Its totient is φ = 901715558400.

The previous prime is 2131000022311. The next prime is 2131000022351. The reversal of 2131000022312 is 2132200001312.

It is a super-2 number, since 2×2131000022312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131000022311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7298264 + ... + 7584632.

It is an arithmetic number, because the mean of its divisors is an integer number (72255446550).

Almost surely, 2^{2131000022312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131000022312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312174289600).

2131000022312 is an abundant number, since it is smaller than the sum of its proper divisors (2493348556888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131000022312 is a wasteful number, since it uses less digits than its factorization.

2131000022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288066 (or 288062 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2131000022312 its reverse (2132200001312), we get a palindrome (4263200023624).

The spelling of 2131000022312 in words is "two trillion, one hundred thirty-one billion, twenty-two thousand, three hundred twelve".